Dual Mobility Cups: An Effective Prosthesis in Revision Total Hip Arthroplasties for Preventing Dislocations

HIP International - Tập 26 Số 1 - Trang 57-61 - 2016
Julio J. Jauregui1, Todd P. Pierce1, Randa K. Elmallah1, Jeffrey J. Cherian1, Ronald E. Delanois1, Michael A. Mont1
1Center for Joint Preservation and Replacement, Rubin Institute for Advanced Orthopedics, Sinai Hospital of Baltimore, Baltimore, Maryland - USA

Tóm tắt

Purpose Postoperative dislocation is one of the most common complications following total hip arthroplasty (THA), and dual mobility articulations have been designed to provide greater hip stability. However, there are few studies that have assessed outcomes of these designs in revision THAs. Our purpose was to evaluate differences in dislocation rates, aseptic survivorship, and patient outcomes between dual mobility articulations and conventional arthroplasties in the revision setting. Methods Patients who underwent revision THA with dual mobility articulations (n = 60) were matched (1:2) to patients who had conventional single articulation prostheses (n = 120). They were matched for body mass index, age, gender, and Paprosky acetabular defect classification, and were followed up for a mean of 30 months (range, 18 to 52 months). The outcomes were evaluated preoperatively and at final follow-up using Harris Hip Scores, the University of California Los Angeles activity scale, and the Short Form-36 questionnaires. Results The dual mobility group had lower dislocation (1.7% (1 out of 60) versus 5.8% (7 out of 120)) and aseptic loosening rates (1.7% (1 out of 60) versus 4.2% (5 out of 120)) compared to the control group. There were no significant differences in functional outcomes, activity level, or overall physical and mental health status between the 2 cohorts. Conclusions When used in the revision setting, dual mobility bearings had fewer dislocations. We believe that these designs may lead to clinically significant improvements in complications while also improving patient reported and functional outcomes, but larger cohort studies are necessary for evaluation.

Từ khóa


Tài liệu tham khảo

10.2106/JBJS.H.00155

10.1016/j.otsr.2009.04.016

10.1007/s00264-006-0191-y

10.1007/s11999-008-0476-0

10.3109/17453674.2012.742395

10.1016/j.otsr.2010.08.003

10.1007/s11999-007-0047-9

Langlois J, 2014, Skeletal Radiol, 43, 1013

10.1016/j.ocl.2013.08.004

10.1302/0301-620X.91B7.22027

10.1016/0883-5403(94)90135-X

Lauenstein C, 1901, Fortschr Röntgenstr, 4, 61

Tian JL, 2014, Chin J Traumatol, 17, 331

10.1097/01.blo.0000142288.66246.4d

Catino MA, In Callaghan JJ Rosenberg AG Rubash HE The Adult Hip.

DeLee JG, 1976, Clin Orthop Relat Res, 20

Gruen TA, 1979, Clin Orthop Relat Res, 17

10.1007/s11999-012-2428-y

10.1007/s00264-008-0589-9

10.1097/00003086-199810000-00015

10.2106/00004623-199711000-00004

10.1016/j.otsr.2013.07.017

Thông tin
Thông tin xuất bản

HIP International

Tập 26 Số 1

57-61

Thông tin tác giả